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Simulation-based testing has emerged as an essential tool for verifying and validating autonomous vehicles (AVs). However, contemporary methodologies, such as deterministic and imitation learning-based driver models, struggle to capture the…

Robotics · Computer Science 2025-11-04 Cheng Wang , Lingxin Kong , Massimiliano Tamborski , Stefano V. Albrecht

To combine explicit and implicit generative models, we introduce semi-implicit generator (SIG) as a flexible hierarchical model that can be trained in the maximum likelihood framework. Both theoretically and experimentally, we demonstrate…

Machine Learning · Statistics 2019-07-30 Mingzhang Yin , Mingyuan Zhou

As machine learning algorithms continue to improve, there is an increasing need for explaining why a model produces a certain prediction for a certain input. In recent years, several methods for model interpretability have been developed,…

Machine Learning · Computer Science 2018-11-22 Yoel Shoshan , Vadim Ratner

Generating adversarial safety-critical scenarios is a pivotal method for testing autonomous driving systems, as it identifies potential weaknesses and enhances system robustness and reliability. However, existing approaches predominantly…

Robotics · Computer Science 2025-03-03 Yukuan Yang , Xucheng Lu , Zhili Zhang , Zepeng Wu , Guoqi Li , Lingzhong Meng , Yunzhi Xue

A powerful simulator highly decreases the need for real-world tests when training and evaluating autonomous vehicles. Data-driven simulators flourished with the recent advancement of conditional Generative Adversarial Networks (cGANs),…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Saeed Saadatnejad , Siyuan Li , Taylor Mordan , Alexandre Alahi

The problem of time-series forecasting in non-stationary and complex environments is a challenging task in machine learning, especially with heterogeneous numerical and textual data present. Traditional statistical models like…

Statistical Finance · Quantitative Finance 2026-05-05 Alexis Lazanas , Spyridon Karpouzis

Speech synthesis is used in a wide variety of industries. Nonetheless, it always sounds flat or robotic. The state of the art methods that allow for prosody control are very cumbersome to use and do not allow easy tuning. To tackle some of…

Sound · Computer Science 2021-10-08 Enrique Hortal , Rodrigo Brechard Alarcia

As self-driving systems become better, simulating scenarios where the autonomy stack may fail becomes more important. Traditionally, those scenarios are generated for a few scenes with respect to the planning module that takes ground-truth…

Ensuring and improving the safety of autonomous driving systems (ADS) is crucial for the deployment of highly automated vehicles, especially in safety-critical events. To address the rarity issue, adversarial scenario generation methods are…

Machine Learning · Computer Science 2025-06-10 Yuewen Mei , Tong Nie , Jian Sun , Ye Tian

Generative Adversarial Networks (GAN) is a model for data synthesis, which creates plausible data through the competition of generator and discriminator. Although GAN application to image synthesis is extensively studied, it has inherent…

Computation and Language · Computer Science 2025-01-07 Jun-Min Lee , Tae-Bin Ha

Time-series forecasting aims to predict future values by modeling temporal dependencies in historical observations. It is a critical component of many real-world systems, where accurate forecasts improve operational efficiency and help…

Machine Learning · Computer Science 2026-04-15 Gamze Kirman Tokgoz , Onat Gungor , Tajana Rosing , Baris Aksanli

Preference alignment is usually achieved by weight-updating training on preference data, which adds substantial alignment-stage compute and provides limited mechanistic visibility. We propose Dynamic SAE Steering for Preference Alignment…

Machine Learning · Computer Science 2026-03-24 James Wedgwood , Aashiq Muhamed , Mona T. Diab , Virginia Smith

Engineered image-based biomarkers offer a clinically interpretable alternative to black-box AI in computational pathology, yet their discovery remains largely intuition-driven, guided by fragmented literature rather than rigorous biological…

Recent work in synthetic data generation in the time-series domain has focused on the use of Generative Adversarial Networks. We propose a novel architecture for synthetically generating time-series data with the use of Variational…

Machine Learning · Computer Science 2021-12-08 Abhyuday Desai , Cynthia Freeman , Zuhui Wang , Ian Beaver

We formalize trust calibration for agentic tool use (deciding when an automated agent's proposed action may execute autonomously versus require human approval) as a preference-learning problem. A policy gateway maintains a Gaussian-process…

Artificial Intelligence · Computer Science 2026-05-20 Changkun Ou

In autonomous driving, behavior prediction is fundamental for safe motion planning, hence the security and robustness of prediction models against adversarial attacks are of paramount importance. We propose a novel adversarial backdoor…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Mozhgan Pourkeshavarz , Mohammad Sabokrou , Amir Rasouli

Generating high-fidelity synthetic tabular data remains a critical challenge for enhancing data availability in privacy-sensitive and low-resource domains. Recent approaches leverage LLMs by representing table rows as sequences, yet suffer…

Machine Learning · Computer Science 2026-04-28 Shuo Yang , Zheyu Zhang , Bardh Prenkaj , Gjergji Kasneci

We present a new approach ARLPCG: Adversarial Reinforcement Learning for Procedural Content Generation, which procedurally generates and tests previously unseen environments with an auxiliary input as a control variable. Training RL agents…

Machine Learning · Computer Science 2021-06-11 Linus Gisslén , Andy Eakins , Camilo Gordillo , Joakim Bergdahl , Konrad Tollmar

We introduce SalGAN, a deep convolutional neural network for visual saliency prediction trained with adversarial examples. The first stage of the network consists of a generator model whose weights are learned by back-propagation computed…

Computer Vision and Pattern Recognition · Computer Science 2018-07-03 Junting Pan , Cristian Canton Ferrer , Kevin McGuinness , Noel E. O'Connor , Jordi Torres , Elisa Sayrol , Xavier Giro-i-Nieto

Generative Adversarial Networks (GANs) have become predominant in image generation tasks. Their success is attributed to the training regime which employs two models: a generator G and discriminator D that compete in a minimax zero sum…

Machine Learning · Computer Science 2020-11-25 Ariel Ruiz-Garcia , Ibrahim Almakky , Vasile Palade , Luke Hicks
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